Title :
A single-polarization optical fiber of hollow pit type with zero total dispersion at wavelength of 1.55 μm
Author :
Hinata, Takashi ; Furukawa, Shinichi ; Namatame, Noboru ; Nakajima, Shigeru
Author_Institution :
Coll. of Sci. & Technol., Nihon Univ., Tokyo, Japan
fDate :
11/1/1994 12:00:00 AM
Abstract :
This paper gives a design method for the single-polarization optical fiber which satisfies simultaneously the wide single-polarization bandwidth, the large modal birefringence, and the zero total dispersion at the wavelength of 1.55 μm. As a type of single-polarization fiber, the optical fiber with two hollow circular pits across the core-clad interface is proposed and designed. The normalized power (=Δ the power in the core/the total power) in the core is also evaluated for the designed fibers. It was found from the numerical analysis that when the zero total dispersion is satisfied at the wavelength of 1.55 μm, the maximum modal birefringence of 1.133×10-3 and the maximum single-polarization bandwidth of 100.6 nm are attained for the relative index difference of 1.6%. Then the normalized power in the core is 0.859
Keywords :
birefringence; numerical analysis; optical design techniques; optical fibre cladding; optical fibre dispersion; optical fibre polarisation; optical fibre theory; refractive index; 1.55 mum; core-clad interface; design method; designed fiber; hollow circular pits; hollow pit type; large modal birefringence; maximum modal birefringence; maximum single-polarization bandwidth; normalized power; numerical analysis; relative index difference; single-polarization optical fiber; total power; wide single-polarization bandwidth; zero total dispersion; Bandwidth; Birefringence; Design methodology; Optical design; Optical fiber dispersion; Optical fiber polarization; Optical fibers; Optical propagation; Silicon compounds; Stress;
Journal_Title :
Lightwave Technology, Journal of
